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Advances in Condensed Matter Physics
Volume 2011 (2011), Article ID 614173, 5 pages
http://dx.doi.org/10.1155/2011/614173
Research Article

𝑝 -Wave Pairing in Quantum Hall Bilayers

1Scientific Computing Laboratory, Institute of Physics, University of Belgrade, P.O. Box 68, 11 000 Belgrade, Serbia
2Laboratoire de Physique des Solides, UMR 8502, CNRS, Université Paris-Sud, 91405 Orsay Cedex, France

Received 25 May 2010; Accepted 9 August 2010

Academic Editor: Emanuel Tutuc

Copyright © 2011 Z. Papić and M. V. Milovanović. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

We show that the wave functions that describe the ground states of putative 𝑝 -wave-paired phases in quantum Hall bilayers, like the Pfaffian at 𝜈 𝑇 = 1 / 2 or the paired phase at 𝜈 𝑇 = 1 , are more likely to describe the excited states of Fermi liquids at these filling factors. We point out to the close competition between Fermi liquid and paired phases, which leads to the conclusion that in the experiments only direct transitions from the correlated 111 and 331 states into Fermi liquid(s) are likely to be observed.